Which part of the cloud is induced by positive charges during a thunderstorm?

Options

A. Top
B. Edges
C. Middle
D. Bottom

Answer

To answer the question, "Which part of the cloud is induced by positive charges during a thunderstorm?", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Thunderstorms**: Thunderstorms are characterized by the presence of cumulonimbus clouds, which are large, towering clouds associated with thunderstorms.

2. **Charge Separation in Clouds**: Within these clouds, there is a process of charge separation. This occurs when air molecules and water droplets collide with each other. The collisions cause electrons to be transferred from one particle to another.

3. **Formation of Positive and Negative Charges**: As a result of these collisions, the upper part of the cloud tends to acquire a positive charge, while the lower part of the cloud becomes negatively charged. This charge separation is crucial for the development of lightning.

4. **Identifying the Induced Part**: Since the question specifically asks about the part of the cloud that is induced by positive charges, we can conclude that the upper part of the cloud is where the positive charges are induced.

5. **Final Answer**: Therefore, the part of the cloud that is induced by positive charges during a thunderstorm is the **upper part of the cloud**.